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Winsen ZE12A-NO2 Electrochemical Gas Sensor Module - DAC & UART Output

₹17,759.00 (Inclusive of all taxes)
Out of Stock

The Winsen ZE12A-NO2 is an electrochemical gas sensor module designed for atmospheric monitoring, capable of detecting CO, H2S, NO2, SO2, and O3. It provides dual digital (UART) and analog (DAC) voltage outputs for easy integration with microcontrollers (Arduino, Raspberry Pi, ESP32) and data acquisition systems.

Features

  • Electrochemical sensing for CO, H2S, NO2, SO2, and O3 gases
  • Dual output: UART digital interface and analog DAC voltage signal
  • High resolution ≤10 ppb for precise atmospheric monitoring
  • Built-in temperature sensor for automatic compensation
  • Low power consumption and long operational lifespan

Out of stock

Description

The Winsen ZE12A-NO2 module employs mature electrochemical sensing cells to detect specific toxic and pollutant gases with high selectivity and stability. Its sophisticated signal conditioning circuitry provides both a direct analog voltage output and a calibrated digital UART interface, simplifying calibration and system integration.

Designed for continuous environmental monitoring, the module features excellent anti-interference capability and a built-in temperature sensor to ensure measurement accuracy across varying ambient conditions. Its compact form factor and dual-output design make it suitable for both portable instruments and fixed monitoring stations.

Key Features

  • Multi-gas electrochemical detection platform
  • Simultaneous UART (TTL) and analog voltage (DAC) outputs
  • Integrated temperature sensor for real-time compensation
  • High sensitivity with resolution down to ≤10 ppb
  • Optimized for long-term stability and low drift
  • Robust circuit design with strong anti-interference performance
  • Low power consumption suitable for battery-operated systems
  • Compact module design for easy integration into host devices

Applications

  • Urban atmospheric environmental monitoring stations
  • Industrial plant perimeter and unorganized emission monitoring
  • Portable multi-gas detectors for emergency response teams
  • Environmental impact assessment and evaluation monitoring systems
  • Integration into smart HVAC and air quality control appliances

Technical Specifications

Item TypeGas Sensor Module
Detection GasesCO, H2S, NO2, SO2, O3
Working PrincipleElectrochemical
Signal OutputDAC, UART
Resolution≤10 ppb
Model NumberZE12A-NO2
Brand / ManufacturerWinsen

Frequently Asked Questions

What gases can the ZE12A-NO2 module detect?

The module is designed to detect multiple toxic and pollutant gases, specifically Carbon Monoxide (CO), Hydrogen Sulfide (H2S), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), and Ozone (O3). Each gas is sensed via dedicated electrochemical cells within the module for good selectivity.

What are the output interfaces and how do I connect them?

The module provides two simultaneous outputs: a digital UART (TTL-level) interface for direct serial communication with microcontrollers, and an analog DAC voltage output. The UART pins (TX, RX) connect directly to a microcontroller's serial port, while the analog output provides a voltage proportional to gas concentration for ADC reading.

Does the module require calibration?

Yes, like all electrochemical sensors, periodic calibration is required to maintain accuracy. The module facilitates this via its digital UART interface, which can be used to send calibration commands and read calibrated concentration values. The analog output can also be calibrated against a known gas standard.

What is the operating voltage and power requirement?

While not explicitly listed in the provided specs, Winsen electrochemical modules typically operate on a 3.3V or 5V DC supply with low power consumption, making them suitable for portable and battery-powered monitoring devices. Please consult the official Winsen datasheet for the ZE12A-NO2 for exact voltage and current specifications.

Package Includes

  • 1 x Winsen ZE12A-NO2 Electrochemical Gas Sensor Module

Additional Information

Weight 0.03 kg
Dimensions 12 × 8 × 4 cm